English
masterbatch
From master + batch.
Today it means
noun A solid product (normally of plastic, rubber, or elastomer) in which pigments or additives are optimally dispersed at high concentration in a carrier material. The carrier material is compatible with the main plastic in which it will be blended during molding, whereby the final plastic product obtains the color or properties from the masterbatch.
Language periods are conventional ranges, not dates for this word.
Etymograph / masterbatch